'''Mirta Francisca de la Caridad Díaz-Balart y Gutiérrez''' ({{lahirmati||30|9|1928}}) adalah istri pertama [[Fidel Castro]], anak dari Rafael José Díaz-Balart, seorang politikus Kuba penting dan walikotawali kota kota Banes, dan istrinya América Gutiérrez. Ia menjadi murid fakultas [[filsafat]] di [[Universitas Havana]], saat dinikahi Fidel.<ref>''Guerrilla Prince: The Untold Story of Fidel Castro'', Georgie Anne Geyer, 2011. "Fidel's courting of Mirta Díaz-Balart, the lovely green-eyed girl with the dark blond hair and the wistful smile, from one of Cuba's wealthiest families, marked the period in his life that was closest to ..."</ref><ref>''The Secret Fidel Castro: Deconstructing the Symbol'' - page 227, Servando González, 2001. "For example, author Georgie Anne Geyer, who has been studying Castro for many years, noted that most women with whom Castro has been romantically involved, including his first wife Mirtha Díaz- Balart, the daughter of a lawyer who ..."</ref>
